chrome/browser/autocomplete/url_prefix.cc

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "chrome/browser/autocomplete/url_prefix.h"
   6
   7 #include "base/basictypes.h"
   8 #include "base/strings/string_util.h"
   9 #include "base/strings/utf_string_conversions.h"
  10
  11 URLPrefix::URLPrefix(const base::string16& prefix, size_t num_components)
  12     : prefix(prefix),
  13       num_components(num_components) {
  14 }
  15
  16 // static
  17 const URLPrefixes& URLPrefix::GetURLPrefixes() {
  18   CR_DEFINE_STATIC_LOCAL(URLPrefixes, prefixes, ());
  19   if (prefixes.empty()) {
  20     prefixes.push_back(URLPrefix(base::ASCIIToUTF16("https://www."), 2));
  21     prefixes.push_back(URLPrefix(base::ASCIIToUTF16("http://www."), 2));
  22     prefixes.push_back(URLPrefix(base::ASCIIToUTF16("ftp://ftp."), 2));
  23     prefixes.push_back(URLPrefix(base::ASCIIToUTF16("ftp://www."), 2));
  24     prefixes.push_back(URLPrefix(base::ASCIIToUTF16("https://"), 1));
  25     prefixes.push_back(URLPrefix(base::ASCIIToUTF16("http://"), 1));
  26     prefixes.push_back(URLPrefix(base::ASCIIToUTF16("ftp://"), 1));
  27     prefixes.push_back(URLPrefix(base::string16(), 0));
  28   }
  29   return prefixes;
  30 }
  31
  32 // static
  33 bool URLPrefix::IsURLPrefix(const base::string16& prefix) {
  34   const URLPrefixes& list = GetURLPrefixes();
  35   for (URLPrefixes::const_iterator i = list.begin(); i != list.end(); ++i)
  36     if (i->prefix == prefix)
  37       return true;
  38   return false;
  39 }
  40
  41 // static
  42 const URLPrefix* URLPrefix::BestURLPrefix(const base::string16& text,
  43                                           const base::string16& prefix_suffix) {
  44   const URLPrefixes& list = GetURLPrefixes();
  45   for (URLPrefixes::const_iterator i = list.begin(); i != list.end(); ++i)
  46     if (PrefixMatch(*i, text, prefix_suffix))
  47       return &(*i);
  48   return NULL;
  49 }
  50
  51 // static
  52 bool URLPrefix::PrefixMatch(const URLPrefix& prefix,
  53                             const base::string16& text,
  54                             const base::string16& prefix_suffix) {
  55   return StartsWith(text, prefix.prefix + prefix_suffix, false);
  56 }